var actionMade = false;

function Selez(mychk, tipo) {
    var cls = document.getElementById(mychk).getAttribute("class");
    if (!actionMade) {
        if (cls != null) {
            if (cls == "chkUNSEL" + tipo) { newCls = "chkSEL" + tipo } else { newCls = "chkUNSEL" + tipo }
            document.getElementById(mychk).setAttribute("class", newCls);
        } else {
            cls = document.getElementById(mychk).className;
            if (cls == "chkUNSEL" + tipo) { newCls = "chkSEL" + tipo } else { newCls = "chkUNSEL" + tipo }
            document.getElementById(mychk).className = newCls;
        }
        actionMade = true;
        return actionMade;
    }
    return false;
}

function roundTo(value, decimalpositions) {
    var i = value * Math.pow(10, decimalpositions);
    i = Math.round(i);
    return i / Math.pow(10, decimalpositions);
}


function displayHideFiltro(idFltr, indx, divsuriga, forzaBlock) {
    var i = indx;
    var nmrig = 0;
    while (i > 0) {
        if (i - divsuriga > 0) {
            nmrig++;
        }
        i = i - divsuriga;
    }
    i = (divsuriga * nmrig) + 1;
    j = i + divsuriga;
    while (i < j) {
        if (document.getElementById(idFltr + i) != null) {
            if (forzaBlock) {
                document.getElementById(idFltr + i).style.display = 'block';
            } else {
                if (document.getElementById(idFltr + i).style.display == 'block') {
                    document.getElementById(idFltr + i).style.display = 'none';
                } else {
                    document.getElementById(idFltr + i).style.display = 'block';
                }
            }
        }
        i++;
    }
}